Users aren't supposed to be (choosing && swapping) CPUs by themselves between these identical sockets(LGA2011 v0 through v3). These are supposed to be bought in trays and kitted in a shop. So reusing same parts for cost saving should not cause issues.

Consumer oriented sockets(LGA115x) has different notches and pin counts to prevent this issue - actually, some of "different" sockets in consumer oriented sockets with "different" chipsets are actually identical, and sometimes you see Chinese bastardized boards that use discarded server-marked chips and pins-fudged hacker builds online that should not be possible according to marketing materials, so there is their own rabbit hole there.